server analysis temporarily disappears

In the last days I've seen this a couple of times: I request a server analysis on some game, then I do something else (maybe request an analysis on another game before the first was done? not sure) and then I cannot see the analysis for the first game for a while (maybe a few hours, maybe a day, not sure) until it gets back.

I'm using a Firefox browser, don't know if that's relevant.

thanks

For example, right now I cannot see the server analysis of this game: lichess.org/1mUuCqiB#0

and indeed, now it's back.